Oprah Daily on MSN
Polished work bags you’ll actually want to take on your commute
Commute in style.
Veritasium on MSN
How one tiny slider makes a zipper almost impossible to pull apart
A zipper looks like one of the simplest objects people use every day, but the engineering inside is far stranger than it ...
Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Why are zippers on different sides of male and ...
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